241 	struct variable *v;  in variable_lookup()  local
243 	list_for_each_entry(v, &variable_list, node) {  in variable_lookup()
244 		if (!strcmp(name, v->name))  in variable_lookup()
245 			return v;  in variable_lookup()
253 	struct variable *v;  in variable_expand()  local
256 	v = variable_lookup(name);  in variable_expand()
257 	if (!v)  in variable_expand()
260 	if (argc == 0 && v->exp_count)  in variable_expand()
264 	if (v->exp_count > 1000)  in variable_expand()
267 	v->exp_count++;  in variable_expand()
269 	if (v->flavor == VAR_RECURSIVE)  in variable_expand()
270 		res = expand_string_with_args(v->value, argc, argv);  in variable_expand()
272 		res = xstrdup(v->value);  in variable_expand()
274 	v->exp_count--;  in variable_expand()
282 	struct variable *v;  in variable_add()  local
286 	v = variable_lookup(name);  in variable_add()
287 	if (v) {  in variable_add()
290 			flavor = v->flavor;  in variable_add()
293 			free(v->value);  in variable_add()
300 		v = xmalloc(sizeof(*v));  in variable_add()
301 		v->name = xstrdup(name);  in variable_add()
302 		v->exp_count = 0;  in variable_add()
303 		list_add_tail(&v->node, &variable_list);  in variable_add()
306 	v->flavor = flavor;  in variable_add()
314 		v->value = xrealloc(v->value,  in variable_add()
315 				    strlen(v->value) + strlen(new_value) + 2);  in variable_add()
316 		strcat(v->value, " ");  in variable_add()
317 		strcat(v->value, new_value);  in variable_add()
320 		v->value = new_value;  in variable_add()
324 static void variable_del(struct variable *v)  in variable_del()  argument
326 	list_del(&v->node);  in variable_del()
327 	free(v->name);  in variable_del()
328 	free(v->value);  in variable_del()
329 	free(v);  in variable_del()
334 	struct variable *v, *tmp;  in variable_all_del()  local
336 	list_for_each_entry_safe(v, tmp, &variable_list, node)  in variable_all_del()
337 		variable_del(v);  in variable_all_del()